Monday 23 July 2012

Video of Photosynthesis


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What is Photosynthesis?

Photosynthesis is the process by which plants, some bacteria, and some protistans use the energy from sunlight to produce sugar, whichcellular respiration converts into ATP, the "fuel" used by all living things. The conversion of unusable sunlight energy into usable chemical energy, is associated with the actions of the green pigment chlorophyll. Most of the time, the photosynthetic process uses water and releases the oxygen that we absolutely must have to stay alive. Oh yes, we need the food as well!
We can write the overall reaction of this process as:
6H2O + 6CO2 ----------> C6H12O6+ 6O2
Most of us don't speak chemicalese, so the above chemical equation translates as:
six molecules of water plus six molecules of carbon dioxide produce one molecule of sugar plus six molecules of oxygen

Diagram of a typical plant, showing the inputs and outputs of the photosynthetic process. Image from Purves et al., Life: The Science of Biology, 4th Edition, by Sinauer Associates (www.sinauer.com) and WH Freeman (www.whfreeman.com), used with permission.


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Learn About Plants - Life Cycle


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Life Cycle of Plants

A plant's life cycle describes how long a plant lives or how long it takes to grow, flower, and set seed. Plants can be either an annual,perennial, or biennial.

tomato plantAnnual

A plant that completes its life cycle in one growing season. It will grow, flower, set seed, and die.
    Examples: Marigolds, tomatoes, and petunias.

roses


Perennial

A plant that lives for 3 or more years. It can grow, flower, and set seed for many years. Underground parts may regrow new stems as in the case ofherbaceous plants, or the stems may live for many years like woody plants (trees).
    Examples: Daisies, chrysanthemums, and roses.

carrots


Biennial

A plant that needs two growing seasons to complete its life cycle. It grows vegetatively (produces leaves) one season. Then it goes dormant or rests over the winter. In the spring, it will begin to grow again and grow flowers, set seed, and die. The seed that is left behind on the ground germinates and the cycle begins again.
    Examples: Parsley, carrots, and foxglove.



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Wednesday 11 July 2012

10 Jenis Pokok Tercantik Di dunia

Di sini saya paparkan paparkan 10 jenis pokok tercantik di dunia.

10. Sequoia Gigantea
Sequoia-Gigantea
 9. Royal Poinciana Tree
Royal-Poinciana-Tree
8. Palm Tree
Palm-Tree
 7. Jacaranda Tree
Jacaranda-Tree
 6. The Basket Tree
The-Basket-Tree
 5. Pink Trumpet Tree
Pink-Trumpet-Tree
 4. Dragon Tree
Dragon-Tree
 3. Acacia
Acacia
 2. Baobab
Baobab
1. Japanese Maple Tree
Japanese-Maple-Tree


CREDIT : http://www.mylifeisbrilliant.com/home-and-garden/garden/most-beautiful-trees-world/
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